Frequently Asked Questions

Are my images uploaded?

No. The supplied site processes selected images using your browser canvas and JavaScript.

Does compression always reduce file size?

No. Results depend on the image, selected format and quality. PNG export is lossless but may be larger than the original. Lower JPEG/WebP quality generally produces smaller files with some visible loss.

Can I compress multiple files?

Yes. Add multiple images, process them and download the results together in a ZIP.

Can I convert animated GIFs?

Animated GIF input can be decoded by supported browsers, but conversion captures a single still frame. Animation is not preserved.

Is AVIF supported?

Only where your browser can decode and encode AVIF. The AVIF export option is disabled when unsupported.

Can I compress a 50MB image?

Files up to 50 MB can be selected. Actual processing depends on image dimensions and your device memory.